They are. But we just kill off the harmful ones when the water is cleaned.
Definitely Tap Water.
you can tap tap
No, it isn't faster, tap water freezes just at the same temperature as tap water
tap water...
tap water
Plain Tap water would freeze fastest.Adding salt or sugar to tap water will cause a depression/decrease in freezing point. Hence it will be harder to freeze the tap salt or sugar water.
Tap water
That depends if the tap water is filtered or not. Bottled water is filtered, and some tap water isn't, but if the tap water is filtered, then both kinds of water are the same healthiness to plants.
tap water will evaporate the fastest
If the refrigerator water is filtered, then it would be different from the tap water coming from the sink.
Tap water.
Tap water